The Spanish Dictionary of Names lists the Benavides name as having a Castilian origin. Its origin has been traced to Ferndndo Alfonso de Benavides, a natural son of Don Alfonso VII, king of Castilla and Le6n. King Alfonso ruled the provinces of Castilla and Le6n from 1104 to I157. The Benavides coat of arms is described as follows: a red lion on a field of silver and a rampart with three bars of gold